Radiohead guitarist Jonny Greenwood is now working as a classical composer for the Australian Chamber Orchestra. The Sydney Morning Herald reports that, following Radiohead’s Australian dates of November 2012, Greenwood stayed in Sydney to work on a composition commissioned by the orchestra.

“I’ve been spending an awful lot of time in dressing rooms the last six months working on this and trying to imagine [it],” Greenwood says. “That’s why I turned up with three quarters of it on paper already, because I’d rather make a lot of mistakes and edit away rather than work with a skeleton and add to it.”

It is not Greenwood’s debut working in the symphonic sphere. He served as a composer-in-residence with the BBC Concert Orchestra in 2004-‘05. The Australian Chamber Orchestra previously played his orchestral work Popcorn Superhet Receiver back in 2010.

But the Australian Chamber Orchestra’s artistic director Richard Tognetti is delighted to have Greenwood back on board. He says, “I think the amazing thing about Jonny is he might be a world first [because of] this incredible acumen that he has for being able to write for an orchestra coming from the background of being in a band.”

Radiohead singer Thom Yorke is currently working with Chili Peppers bassist Flea in Atoms For Peace.